21815496

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:499

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 42206904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 37, 38, 57, 72, 74, 76, 111, 114, 148, 152, 171, 222, 228, 296, 333, 342, 431, 444, 456, 666, 684, 703, 862, 888, 1293, 1332, 1368, 1406, 1724, 2109, 2586, 2664, 2812, 3448, 3879, 4218, 5172, 5624, 6327, 7758, 8189, 8436, 10344, 12654, 15516, 15947, 16378, 16872, 24567, 25308, 31032, 31894, 32756, 47841, 49134, 50616, 63788, 65512, 73701, 95682, 98268, 127576, 143523, 147402, 191364, 196536, 287046, 294804, 302993, 382728, 574092, 589608, 605986, 908979, 1148184, 1211972, 1817958, 2423944, 2726937, 3635916, 5453874, 7271832, 10907748, 21815496]

約数ペア:

[(1, 21815496), (2, 10907748), (3, 7271832), (4, 5453874), (6, 3635916), (8, 2726937), (9, 2423944), (12, 1817958), (18, 1211972), (19, 1148184), (24, 908979), (36, 605986), (37, 589608), (38, 574092), (57, 382728), (72, 302993), (74, 294804), (76, 287046), (111, 196536), (114, 191364), (148, 147402), (152, 143523), (171, 127576), (222, 98268), (228, 95682), (296, 73701), (333, 65512), (342, 63788), (431, 50616), (444, 49134), (456, 47841), (666, 32756), (684, 31894), (703, 31032), (862, 25308), (888, 24567), (1293, 16872), (1332, 16378), (1368, 15947), (1406, 15516), (1724, 12654), (2109, 10344), (2586, 8436), (2664, 8189), (2812, 7758), (3448, 6327), (3879, 5624), (4218, 5172)]